2020 DODGE DURANGO check engine

188STARTING AND OPERATING
COLD WEATHER OPERATION (BELOW
–22°F O
R −30°C)
To ensure reliable starting at these
temperatures, use of an externally powered
electric engine block heater (available from an
authorized dealer) is recommended.
AFTER STARTING
The idle speed is controlled automatically, and
it will decrease as the engine warms up.
ENGINE BLOCK HEATER — IF EQUIPPED
The engine block heater warms the engine, and
permits quicker starts in cold weather. Connect
the cord to a standard 110-115 Volt AC
electrical outlet with a grounded, three-wire
extension cord.
The engine block heater must be plugged in at
least one hour to have an adequate warming
effect on the engine. The engine block heater cord is located:
3.6L Engine — Coiled and strapped to the
engine oil dipstick tube.
5.7L Engine — Bundled and fastened to the
injector harness.
ENGINE BREAK-IN RECOMMENDATIONS –
NON-SRT
A long break-in period is not required for the
engine and drivetrain (transmission and axle) in
your vehicle.
Drive moderately during the first 300 miles
(500 km). After the initial 60 miles (100 km),
speeds up to 50 or 55 mph (80 or 90 km/h) are
desirable.
While cruising, brief full-throttle acceleration
within the limits of local traffic laws contributes
to a good break-in.
Wide-open throttle acceleration in low gear can
be detrimental and should be avoided.
The engine oil installed in the engine at the
factory is a high-quality energy conserving type
lubricant. Oil changes should be consistent with
anticipated climate conditions under which
vehicle operations will occur. For the
recommended viscosity and quality grades,
refer to “Dealer Service” in “Servicing And
Maintenance”.
NOTE:
A new engine may consume some oil during its
first few thousand miles (kilometers) of opera
-
tion. This should be considered a normal part of
the break-in and not interpreted as a problem.
Please check your oil level with the engine oil
indicator often during the break-in period. Add
oil as required.
CAUTION!
To prevent damage to the starter, do not
continuously crank the engine for more than
25 seconds at a time. Wait 60 seconds
before trying again.
WARNING!
Remember to disconnect the engine block
heater cord before driving. Damage to the
110-115 Volt electrical cord could cause
electrocution.
CAUTION!
Never use Non-Detergent Oil or Straight
Mineral Oil in the engine or damage may
result.

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STARTING AND OPERATING189
ENGINE BREAK-IN RECOMMENDATIONS –
SRT
The following tips will be helpful in obtaining
optimum performance and maximum durability
for your new SRT Vehicle.
Despite modern technology and World Class
manufacturing methods, the moving parts of
the vehicle still require wear in with one
another. This wearing in occurs mainly during
the first 500 miles (805 km) and continues
through the first oil change interval.
It is recommended that the operator observe
the following driving behaviors during the new
vehicle break-in period:
0 to 100 miles (0 to 161 km):
Do not allow the engine to operate at idle for
an extended period of time.
Depress the accelerator pedal slowly and
not more than halfway to avoid rapid
acceleration.
Avoid aggressive braking.
Drive with the engine speed less than
3,500 RPM.
Maintain vehicle speed below 55 mph
(88 km/h) and observe local speed limits.
100 to 300 miles (161 to 483 km):
Depress the accelerator pedal slowly and not
more than halfway to avoid rapid accelera -
tion in lower gears (FIRST to THIRD gears).
Avoid aggressive braking.
Drive with the engine speed less than
5,000 RPM.
Maintain vehicle speed below 70 mph
(112 km/h) and observe local speed limits. 300 to 500 miles (483 to 805 km):
Exercise the full engine RPM range, shifting
manually (paddles or gear shift) at higher
RPM when possible.
Do not perform sustained operation with the
accelerator pedal at wide open throttle.
Maintain vehicle speed below 85 mph
(136 km/h) and observe local speed limits.
For the first 1,500 miles (2,414 km):
Do not participate in track events, sport
driving schools, or similar activities during
the first 1,500 miles (2,414 km).
NOTE:
Check engine oil with every refueling and add if
necessary. Oil and fuel consumption may be
higher through the first oil change interval.
Running the engine with an oil level below the
add mark can cause severe engine damage.5

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STARTING AND OPERATING191
(Continued)
(Continued)
(Continued)
AUTOMATIC TRANSMISSION
Always fully apply the parking brake when
leaving your vehicle, or it may roll and
cause damage or injury. Also be certain to
leave the transmission in PARK. Failure to
do so may allow the vehicle to roll and
cause damage or injury.
CAUTION!
If the Brake Warning Light remains on with
the parking brake released, a brake system
malfunction is indicated. Have the brake
system serviced by an authorized dealer
immediately.
WARNING!
Never use the PARK (P) position as a substi
-
tute for the parking brake. Always apply the
parking brake fully when exiting the vehicle
to guard against vehicle movement and
possible injury or damage.
WARNING! (Continued)
Your vehicle could move and injure you and
others if it is not in PARK. Check by trying to
move the transmission gear selector out of
PARK with the brake pedal released. Make
sure the transmission is in PARK before
exiting the vehicle.
The transmission may not engage PARK if
the vehicle is moving. Always bring the
vehicle to a complete stop before shifting to
PARK, and verify that the transmission gear
position indicator solidly indicates PARK
without blinking. Ensure that the vehicle is
completely stopped, and the PARK position
is properly indicated, before exiting the
vehicle.
It is dangerous to shift out of PARK or
NEUTRAL (N) if the engine speed is higher
than idle speed. If your foot is not firmly
pressing the brake pedal, the vehicle could
accelerate quickly forward or in reverse.
You could lose control of the vehicle and hit
someone or something. Only shift into gear
when the engine is idling normally and your
foot is firmly pressing the brake pedal.
WARNING! (Continued)
Unintended movement of a vehicle could
injure those in or near the vehicle. As with
all vehicles, you should never exit a vehicle
while the engine is running. Before exiting a
vehicle, always come to a complete stop,
then apply the parking brake, shift the
transmission into PARK, and turn the igni -
tion OFF. When the ignition is in the OFF
mode, the transmission is locked in PARK,
securing the vehicle against unwanted
movement.
When exiting the vehicle, always make sure
the ignition is in the OFF mode, remove the
key fob from the vehicle, and lock the
vehicle.
Never leave children alone in a vehicle, or
with access to an unlocked vehicle.
Allowing children to be in a vehicle unat -
tended is dangerous for a number of
reasons. A child or others could be seriously
or fatally injured. Children should be
warned not to touch the parking brake,
brake pedal or the transmission gear
selector.
WARNING! (Continued)
5

20_WD_OM_EN_USC_t.book Page 191

194STARTING AND OPERATING
(Continued)
NOTE:
If the gear selector cannot be moved to the
PARK, REVERSE, or NEUTRAL position (when
pushed forward) it is probably in the MANUAL
(AutoStick, +/-) position (beside the DRIVE posi-
tion). In MANUAL (AutoStick) mode, the trans -
mission gear is displayed in the instrument
cluster (as 1, 2, 3, etc.). Move the gear selector
to the right (into the DRIVE [D] position) for
access to PARK, REVERSE, and NEUTRAL.
Gear Ranges
Do not depress the accelerator pedal when
shifting from PARK (P) or NEUTRAL (N) into
another gear range.
NOTE:
After selecting any gear range, wait a moment
to allow the selected gear to engage before
accelerating. This is especially important when
the engine is cold.
PARK (P)
This range supplements the parking brake by
locking the transmission. The engine can be
started in this range. Never attempt to use
PARK while the vehicle is in motion. Apply the parking brake when exiting the vehicle
in this range.
When parking on a level surface, you may shift
the transmission into PARK first, and then apply
the parking brake.
When parking on a hill, apply the parking brake
before shifting the transmission to PARK. As an
added precaution, turn the front wheels toward
the curb on a downhill grade and away from the
curb on an uphill grade.
NOTE:
On vehicles equipped with the electronically
shifted transfer case, ensure that the transfer
case is in AWD AUTO or LOW RANGE position on
the AWD Control Switch. Ensure that the
NEUTRAL position light is NOT illuminated.
When exiting the vehicle, always:
Apply the parking brake.
Shift the transmission into PARK.
Turn the ignition OFF.
Remove the key fob from the vehicle.
WARNING!
Never use the PARK (P) position as a substi
-
tute for the parking brake. Always apply the
parking brake fully when exiting the vehicle
to guard against vehicle movement and
possible injury or damage.
Your vehicle could move and injure you and
others if it is not in PARK. Check by trying to
move the transmission gear selector out of
PARK with the brake pedal released. Make
sure the transmission is in PARK before
exiting the vehicle.
The transmission may not engage PARK if
the vehicle is moving. Always bring the
vehicle to a complete stop before shifting to
PARK, and verify that the transmission gear
position indicator solidly indicates PARK
without blinking. Ensure that the vehicle is
completely stopped, and the PARK position
is properly indicated, before exiting the
vehicle.

20_WD_OM_EN_USC_t.book Page 194

204STARTING AND OPERATING
The engine will shut down, the tachometer will
move to the zero position and the Stop/Start
telltale will illuminate indicating you are in
Autostop. Customer settings will be maintained
upon return to an engine running condition.
Refer to the “Stop/Start System” in the
“Starting And Operating” section for further
information.
POSSIBLE REASONS THE ENGINE DOES
N
OT AUTOSTOP
Prior to engine shut down, the system will check
many safety and comfort conditions to see if
they are fulfilled. Detailed information about the
operation of the Stop/Start system may be
viewed in the instrument cluster display Stop/
Start Screen. In the following situations, the
engine will not stop:
Driver’s seat belt is not buckled.
Driver’s door is not closed.
Battery temperature is too warm or cold.
Battery charge is low.
The vehicle is on a steep grade.
Cabin heating or cooling is in process and an
acceptable cabin temperature has not been
achieved.
HVAC is set to full defrost mode at a high
blower speed.
HVAC set to MAX A/C.
Engine has not reached normal operating
temperature.
The transmission is not in a forward gear.
Hood is open.
Brake pedal is not pressed with sufficient
pressure.
Other Factors Which Can Inhibit Autostop
Include:
Accelerator pedal input.
Engine temp too high.
5 mph (8 km/h) threshold not achieved from
previous Autostop.
Steering angle beyond threshold.
ACC is on and speed is set. It may be possible for the vehicle to be driven
several times without the Stop/Start system
going into a STOP/START READY state under
more extreme conditions of the items listed
above.
TO START THE ENGINE WHILE IN
A
UTOSTOP MODE
While in a forward gear, the engine will start
when the brake pedal is released or the throttle
pedal is depressed. The transmission will
automatically re-engage upon engine restart.
Conditions That Will Cause The Engine To Start
Automatically While In Autostop Mode:
The transmission selector is moved out of
DRIVE.
To maintain cabin temperature comfort.
HVAC is set to full defrost mode.
HVAC system temperature or fan speed is
manually adjusted.
Battery voltage drops too low.

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STARTING AND OPERATING205
Low brake vacuum (e.g. after several brake
pedal applications).
Stop/Start OFF switch is pushed.
A Stop/Start system error occurs.
TO MANUALLY TURN OFF THE STOP/
S
TART SYSTEM

Stop/Start OFF Switch

1. Push the Stop/Start OFF switch (located on the switch bank). The light on the switch
will illuminate.

2. The “STOP/START OFF” message will appear in instrument cluster display within
the Stop/Start section. Refer to “Instrument
Cluster” in “Getting To Know Your
Instrument Panel” for further information. 3. At the next vehicle stop (after turning off the
Stop/Start system), the engine will not be
stopped.
4. The Stop/Start system will reset itself back to an on condition every time the ignition is
turned off and back on.
TO MANUALLY TURN ON THE STOP/
S
TART SYSTEM
Push the Stop/Start OFF switch (located on the
switch bank). The light on the switch will turn
off.
SYSTEM MALFUNCTION
If there is a malfunction in the Stop/Start
system, the system will not shut down the
engine. A “SERVICE STOP/START SYSTEM”
message will appear in the instrument cluster
display. Refer to “Instrument Cluster Display“ in
“Getting to Know Your Instrument Panel” for
further information.
If the “SERVICE STOP/START SYSTEM”
message appears in the instrument cluster
display, have the system checked by an
authorized dealer.
SPEED CONTROL — IF EQUIPPED
When engaged, the Speed Control takes over
accelerator operations at speeds greater than
20 mph (32 km/h).
The Speed Control buttons are located on the
right side of the steering wheel.

Speed Control Buttons

1 — On/Off
2 — CANC/Cancel
3 — SET (+)/Accel
4 — RES/Resume
5 — SET (-)/Decel
5

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STARTING AND OPERATING257
6. Using a ballpoint pen or similar object, push
and hold the recessed transfer case
NEUTRAL (N) button (located by the selector
switch) for one second.

NEUTRAL (N) Switch

7. When the NEUTRAL (N) indicator light turns off, release the NEUTRAL (N) button.
8. After the NEUTRAL (N) button has been released, the transfer case will shift to the
position indicated by the selector switch.
9. Shift the transmission into PARK and turn the engine off.
10. Release the brake pedal.
11. Disconnect vehicle from the tow vehicle.
12. Start the engine. 13. Press and hold the brake pedal.
14. Release the parking brake.
15. Shift the transmission into DRIVE, release
the brake pedal, and check that the vehicle
operates normally.
NOTE:
Steps 1 through 5 are requirements that
must be met before pushing the NEUTRAL (N)
button, and must continue to be met until the
shift has been completed. If any of these
requirements are not met before pushing the
NEUTRAL (N) button or are no longer met
during the shift, the NEUTRAL (N) indicator
light will flash continuously until all require -
ments are met or until the NEUTRAL (N)
button is released.
The ignition must be in the ON/RUN mode for
a shift to take place and for the position indi -
cator lights to be operable. If the ignition is
not in the ON/RUN mode, the shift will not
take place and no position indicator lights will
be on or flashing.
A flashing NEUTRAL (N) position indicator
light indicates that shift requirements have
not been met.
DRIVING TIPS
ON-ROAD DRIVING TIPS
Utility vehicles have higher ground clearance
and a narrower track to make them capable of
performing in a wide variety of off-road
applications. Specific design characteristics
give them a higher center of gravity than
conventional passenger cars.
An advantage of the higher ground clearance is
a better view of the road, allowing you to
anticipate problems. They are not designed for
cornering at the same speeds as conventional
passenger cars any more than low-slung sports
cars are designed to perform satisfactorily in
off-road conditions. Avoid sharp turns or abrupt
maneuvers. As with other vehicles of this type,
failure to operate this vehicle correctly may
result in loss of control or vehicle rollover.
5

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258STARTING AND OPERATING
OFF-ROAD DRIVING TIPS
When To Use 4WD LOW — If Equipped
When off-road driving, shift to 4WD LOW for
additional traction. This range should be limited
to extreme situations such as deep snow, mud,
or sand where additional low speed pulling
power is needed. Vehicle speeds in excess of
25 mph (40 km/h) should be avoided when in
4WD LOW.
Driving Through Water
Although your vehicle is capable of driving
through water, there are a number of
precautions that must be considered before
entering the water.
Driving through water more than a few inches/
centimeters deep will require extra caution to
ensure safety and prevent damage to your
vehicle. If you must drive through water, try to
determine the depth and the bottom condition
(and location of any obstacles) prior to entering.
Proceed with caution and maintain a steady
controlled speed less than 5 mph (8 km/h) in
deep water to minimize wave effects. Flowing Water
If the water is swift flowing and rising (as in
storm run-off), avoid crossing until the water
level recedes and/or the flow rate is reduced. If
you must cross flowing water avoid depths in
excess of 9 inches (23 cm). The flowing water
can erode the streambed, causing your vehicle
to sink into deeper water. Determine exit
point(s) that are downstream of your entry point
to allow for drifting.
Standing Water
Avoid driving in standing water deeper than
20 inches (51 cm), and reduce speed
appropriately to minimize wave effects.
Maximum speed in 20 inches (51 cm) of water
is less than 5 mph (8 km/h).
Maintenance
After driving through deep water, inspect your
vehicle fluids and lubricants (engine oil,
transmission oil, axle, transfer case) to ensure
the fluids have not been contaminated.
Contaminated fluid (milky, foamy in
appearance) should be flushed/changed as
soon as possible to prevent component
damage.
WARNING!
Do not drive in 4WD LOW on dry pavement;
driveline damage may result. 4WD LOW locks
front and rear drivelines together and does
not allow for differential action between the
front to rear driveshafts. Driving in 4WD LOW
on pavement will cause driveline binding; use
only on wet or slippery surfaces.
CAUTION!
When driving through water, do not exceed
5 mph (8 km/h). Always check water depth
before entering as a precaution, and check all
fluids afterward. Driving through water may
cause damage that may not be covered by
the New Vehicle Limited Warranty.

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